REDUNDANCY AND RELIABILITY OF R/C BUILDINGS IN MEDIUM SEISMICITY REGIONS | ||||
| The International Conference on Civil and Architecture Engineering | ||||
| Article 25, Volume 6, 6th International Conference on Civil and Architecture Engineering, May 2006, Page 12-21 PDF (180.03 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/iccae.2006.45790 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Mohamed Husain; Aman Mwafy | ||||
| Assistant Professor of Structural Engineering, Zagazig University, Zagazig, Egypt. | ||||
| Abstract | ||||
| This paper presents results of inelastic pushover analyses of eight and twelve-story R/C buildings designed and detailed according to current seismic codes for the construction in medium seismicity areas. Two inelastic finite element packages were used in the analyses, namely Zeus-NL and DRAIN-2D. The former employs a detailed fiber modeling, while DRAIN-2D adopts the lumped plasticity modeling approach with member hysteretic rules simulating numerous experimental results of various structural members. The objective is to evaluate the redundancy and reliability of typical R/C buildings complying with current seismic provisions. The investigation employs different reliability factors and redundancy indices from the IBC-2003 code and from prior investigations. Differences between the seismic response from the two modeling approaches adopted in this study are highlighted. DRAIN-2D predictions of the ultimate strength of the eight-story building was found to be 10% lower than that of ZEUS-NL. DRAIN-2D results also indicated a three-story sway mechanism that was not detected by the refined fiber modeling of the eight-story building. Finally, a rational reformulation of reliability/redundancy factor is suggested. The study concluded that buildings adequately design and detailed to current seismic codes for medium seismicity regions have acceptable levels of reliability and redundancy. | ||||
| Keywords | ||||
| Redundancy; Reliability; medium seismicity regions; R/C buildings; Nonlinear Analysis | ||||
|
Statistics Article View: 76 PDF Download: 268 |
||||
